This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID160X700S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.

The AirTAC Airtac SID Series Double-Rod Cylinder SID160X700S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 700mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID160X700S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID160X700S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, yielding equal push and pull force of 9425 N at 0.5 MPa. This discontinued model is fully replaced by the SAID160X700S, retaining the 160mm bore, 700mm stroke, G3/4 port, and mounting interface. The SAI upgrade uses an advanced two Y-shaped one-way piston seal for lower start-up pressure and longer life.
With a 40mm rod and M36x2 thread, the equal-both-ways action prevents rod rotation and allows driving two tools simultaneously. Note that air cushions only decelerate; use an external rod lock or SAIL/BSAI variant for load holding on air loss.
| Model | Airtac SID Series Double-Rod Cylinder SID160X700S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID160X700S |
| Bore size | Ø160 mm |
| Stroke | 700 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID160X700S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAID160X700S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×700 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Drives two opposing machining heads with equal 9425 N force at 0.5 MPa, keeping cycle times balanced without requiring separate cylinders.
Uses the twin-rod architecture to prevent rod rotation during long 700mm strokes, ensuring precise alignment of heavy conveyor diversion gates.
To replace the discontinued SID160X700S, specify the SAID160X700S direct, which preserves the ISO 15552 mounting interface, 700mm stroke, and equal both-ways force. Size both directions by checking neighboring bores (like 125mm or 200mm) if you need to adjust the 9425 N @0.5 MPa output. A double-rod design is right when you need anti-rotation, a back rod for a sensor cam, or dual-tool driving. Reuse FA, LB, or TC mounts. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches. For this 700mm stroke, add external guides to prevent rod bending under side loads.
Replacement checklist
Yes, the SID160X700S is discontinued. The direct replacement is the SAID160X700S, sharing the same ISO 15552 interface, 160mm bore, 700mm stroke, G3/4 port, and equal both-ways force.
Force is equal both ways: 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. The air port is G3/4, the rod is 40mm with an M36x2 thread, and speed ranges from 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID160X700S replacement — usually within 7-8 hours.